在MVVM应视图模型或模式实现INotifyPropertyChanged？ [英] In MVVM should the ViewModel or Model implement INotifyPropertyChanged?

问题描述

大多数MVVM的例子我也通过合作办过的模型的实现INotifyPropertyChanged，但在的约什·史密斯的CommandSink例如 视图模型实现INotifyPropertyChanged

Most MVVM examples I have worked through have had the Model implement INotifyPropertyChanged, but in Josh Smith's CommandSink example the ViewModel implements INotifyPropertyChanged.

我还是认知放在一起的MVVM的概念，所以我不知道是否：

I'm still cognitively putting together the MVVM concepts, so I don't know if:

• 您必须把INotifyPropertyChanged的在视图模型得到CommandSink工作


• 这只是常态的像差，它并不真正的问题


• 您应该始终有模型实现INotifyPropertyChanged这只是如果这是从一个code例如开发一个应用程序这将予以纠正一个错误

什么都被别人的MVVM项目的经验，你已经工作了？

What have been others' experiences on MVVM projects you have worked on?

推荐答案

我说恰恰相反，我总是把我的 INotifyPropertyChanged的我的视图模型 - 你真不不想成为像 INotifyPropertyChanged的相当WPF特定功能，这些东西应该坐在视图模型污染模型。

I'd say quite the opposite, I always put my INotifyPropertyChanged on my ViewModel - you really don't want to be polluting your model with a fairly WPF specific feature like INotifyPropertyChanged, that stuff should sit in the ViewModel.

我相信其他人会不同意，但这是我的工作方式。

I'm sure others would disagree, but that's the way I work.

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